content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -------------
   * Zoomable.java
   * -------------
   *
   * (C) Copyright 2004-2008, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   Rune Fauske;
   *
   * Changes
   * -------
   * 12-Nov-2004 : Version 1 (DG);
   * 26-Jan-2004 : Added getOrientation() method (DG);
   * 04-Sep-2006 : Added credit for Rune Fauske, see patch 1050659 (DG);
   * 21-Sep-2007 : Added new zooming methods with 'useAnchor' flag.  This breaks
   *               the API, but is the cleanest way I can think of to fix a
   *               long-standing bug (DG);
   *
   */
  
  package org.jfree.chart.plot;
  
  import java.awt.geom.Point2D;
  
  import org.jfree.chart.ChartPanel;
  
  /**
   * A plot that is zoomable must implement this interface to provide a
   * mechanism for the {@link ChartPanel} to control the zooming.
   */
  public interface Zoomable {
  
      /**
       * Returns <code>true</code> if the plot's domain is zoomable, and
       * <code>false</code> otherwise.
       *
       * @return A boolean.
       *
       * @see #isRangeZoomable()
       */
      public boolean isDomainZoomable();
  
      /**
       * Returns <code>true</code> if the plot's range is zoomable, and
       * <code>false</code> otherwise.
       *
       * @return A boolean.
       *
       * @see #isDomainZoomable()
       */
      public boolean isRangeZoomable();
  
      /**
       * Returns the orientation of the plot.
       *
       * @return The orientation.
       */
      public PlotOrientation getOrientation();
  
      /**
       * Multiplies the range on the domain axis/axes by the specified factor.
       * The <code>source</code> point can be used in some cases to identify a
       * subplot, or to determine the center of zooming (refer to the
       * documentation of the implementing class for details).
       *
       * @param factor  the zoom factor.
       * @param state  the plot state.
       * @param source  the source point (in Java2D coordinates).
       *
       * @see #zoomRangeAxes(double, PlotRenderingInfo, Point2D)
       */
      public void zoomDomainAxes(double factor, PlotRenderingInfo state,
                                 Point2D source);
  
      /**
       * Multiplies the range on the domain axis/axes by the specified factor.
       * The <code>source</code> point can be used in some cases to identify a
       * subplot, or to determine the center of zooming (refer to the
       * documentation of the implementing class for details).
       *
       * @param factor  the zoom factor.
       * @param state  the plot state.
       * @param source  the source point (in Java2D coordinates).
       * @param useAnchor  use source point as zoom anchor?
       *
       * @see #zoomRangeAxes(double, PlotRenderingInfo, Point2D, boolean)
       *
       * @since 1.0.7
       */
      public void zoomDomainAxes(double factor, PlotRenderingInfo state,
                                 Point2D source, boolean useAnchor);
  
      /**
       * Zooms in on the domain axes.  The <code>source</code> point can be used
       * in some cases to identify a subplot for zooming.
       *
       * @param lowerPercent  the new lower bound.
       * @param upperPercent  the new upper bound.
       * @param state  the plot state.
       * @param source  the source point (in Java2D coordinates).
       *
       * @see #zoomRangeAxes(double, double, PlotRenderingInfo, Point2D)
       */
      public void zoomDomainAxes(double lowerPercent, double upperPercent,
                                 PlotRenderingInfo state, Point2D source);
  
      /**
       * Multiplies the range on the range axis/axes by the specified factor.
       * The <code>source</code> point can be used in some cases to identify a
       * subplot, or to determine the center of zooming (refer to the
       * documentation of the implementing class for details).
       *
       * @param factor  the zoom factor.
       * @param state  the plot state.
       * @param source  the source point (in Java2D coordinates).
       *
       * @see #zoomDomainAxes(double, PlotRenderingInfo, Point2D)
       */
      public void zoomRangeAxes(double factor, PlotRenderingInfo state,
                                Point2D source);
  
      /**
       * Multiplies the range on the range axis/axes by the specified factor.
       * The <code>source</code> point can be used in some cases to identify a
       * subplot, or to determine the center of zooming (refer to the
       * documentation of the implementing class for details).
       *
       * @param factor  the zoom factor.
       * @param state  the plot state.
       * @param source  the source point (in Java2D coordinates).
       * @param useAnchor  use source point as zoom anchor?
       *
       * @see #zoomDomainAxes(double, PlotRenderingInfo, Point2D)
       *
       * @since 1.0.7
       */
      public void zoomRangeAxes(double factor, PlotRenderingInfo state,
                                Point2D source, boolean useAnchor);
  
      /**
       * Zooms in on the range axes.  The <code>source</code> point can be used
       * in some cases to identify a subplot for zooming.
       *
       * @param lowerPercent  the new lower bound.
       * @param upperPercent  the new upper bound.
       * @param state  the plot state.
       * @param source  the source point (in Java2D coordinates).
       *
       * @see #zoomDomainAxes(double, double, PlotRenderingInfo, Point2D)
       */
      public void zoomRangeAxes(double lowerPercent, double upperPercent,
                                PlotRenderingInfo state, Point2D source);
  
  }
  